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Binary Stopwatch with Arduino

An Arduino stopwatch with a series of LEDs


Updated 07 Jul 2015

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This submission shows how to use Simulink with Arduino Support package to build a binary clock.
What's a binary clock?

Several things that can be learnt here include:
1) Using clock block to generate the time.
2) Separating the time value(a number) to individual digits, using the 'fix' and 'mod' function.
3) Converting the decimal value to binary values with a Matlab function block.
4) Sending the binary values to LEDs via digital output pins.

There are 4 sets of 4 LEDs (total 16 LEDs).
Orange is in hundredths of a second, Blue in tenths of a second, green in ones(0-9) and Red in tens.

This model is easily configured to include hundreds if needed.

Cite As

Techsource Technical Team (2020). Binary Stopwatch with Arduino (, MATLAB Central File Exchange. Retrieved .

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MATLAB Release Compatibility
Created with R2015a
Compatible with any release
Platform Compatibility
Windows macOS Linux